159647949 has 32 divisors (see below), whose sum is σ = 243584000. Its totient is φ = 103284720.

The previous prime is 159647911. The next prime is 159647963. The reversal of 159647949 is 949746951.

It is a happy number.

159647949 is a `hidden beast` number, since 1 + 596 + 4 + 7 + 9 + 49 = 666.

It is not a de Polignac number, because 159647949 - 2⁷ = 159647821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159647895 and 159647904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159647989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230694 + ... + 231384.

It is an arithmetic number, because the mean of its divisors is an integer number (7612000).

Almost surely, 2^159647949 is an apocalyptic number.

It is an amenable number.

159647949 is a deficient number, since it is larger than the sum of its proper divisors (83936051).

159647949 is a wasteful number, since it uses less digits than its factorization.

159647949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 936 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 159647949 is about 12635.1869396539. The cubic root of 159647949 is about 542.4850586610.

The spelling of 159647949 in words is "one hundred fifty-nine million, six hundred forty-seven thousand, nine hundred forty-nine".